Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed

E. D. Leiva; C. D.P. Ramila; I. T. Vargas; C. E. Escauriaza; C. A. Bonilla; G. E. Pizarro; P. A. Pasten; J. M. Regan

doi:10.1201/b16767-35

Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed

E. D. Leiva, C. D.P. Ramila, I. T. Vargas, C. E. Escauriaza, C. A. Bonilla, G. E. Pizarro, P. A. Pasten, J. M. Regan

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

We investigated the relevance of the interaction between Fe and As in iron-rich sediments for As attenuation in surface waters of the Chilean Altiplano, under climatic conditions of extreme altitude (>4,000 masl) and aridity (<310 mm year^-1). Our results show that As concentrations in aqueous phase were attenuated (>70%) due to stabilization processes in Fe-rich sediments. Total As content in Fe sediment profiles exceeds 0.9 g kg^-1 and in the surface is higher than 4 g kg^-1. As and Fe show perfect correlation in the Fe sediment profiles indicating a close connection between Fe minerals and As mobilization. Altogether, these results indicate that As attenuation is controlled by stabilization processes onto Fe minerals on the surface and at depth, thus controlling the discharge of As-rich runoff to the surface waters.

Original language	English (US)
Title of host publication	One Century of the Discovery of Arsenicosis in Latin America (1914-2014)
Subtitle of host publication	As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment
Publisher	CRC Press/Balkema
Pages	90-92
Number of pages	3
ISBN (Print)	9781138001411
DOIs	https://doi.org/10.1201/b16767-35
State	Published - Jan 1 2014
Event	5th International Congress on Arsenic in the Environment, As 2014 - Buenos Aires, Argentina Duration: May 11 2014 → May 16 2014

Publication series

Name	One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment

Other

Other	5th International Congress on Arsenic in the Environment, As 2014
Country/Territory	Argentina
City	Buenos Aires
Period	5/11/14 → 5/16/14

All Science Journal Classification (ASJC) codes

Chemical Health and Safety

Access to Document

10.1201/b16767-35

Cite this

Leiva, E. D., Ramila, C. D. P., Vargas, I. T., Escauriaza, C. E., Bonilla, C. A., Pizarro, G. E., Pasten, P. A., & Regan, J. M. (2014). Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed. In One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment (pp. 90-92). (One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment). CRC Press/Balkema. https://doi.org/10.1201/b16767-35

Leiva, E. D. ; Ramila, C. D.P. ; Vargas, I. T. et al. / Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed. One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. CRC Press/Balkema, 2014. pp. 90-92 (One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment).

@inproceedings{21d9bdbbd16a48bc9b855da9fcb1566c,

title = "Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed",

abstract = "We investigated the relevance of the interaction between Fe and As in iron-rich sediments for As attenuation in surface waters of the Chilean Altiplano, under climatic conditions of extreme altitude (>4,000 masl) and aridity (<310 mm year-1). Our results show that As concentrations in aqueous phase were attenuated (>70%) due to stabilization processes in Fe-rich sediments. Total As content in Fe sediment profiles exceeds 0.9 g kg-1 and in the surface is higher than 4 g kg-1. As and Fe show perfect correlation in the Fe sediment profiles indicating a close connection between Fe minerals and As mobilization. Altogether, these results indicate that As attenuation is controlled by stabilization processes onto Fe minerals on the surface and at depth, thus controlling the discharge of As-rich runoff to the surface waters.",

author = "Leiva, {E. D.} and Ramila, {C. D.P.} and Vargas, {I. T.} and Escauriaza, {C. E.} and Bonilla, {C. A.} and Pizarro, {G. E.} and Pasten, {P. A.} and Regan, {J. M.}",

year = "2014",

month = jan,

day = "1",

doi = "10.1201/b16767-35",

language = "English (US)",

isbn = "9781138001411",

series = "One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment",

publisher = "CRC Press/Balkema",

pages = "90--92",

booktitle = "One Century of the Discovery of Arsenicosis in Latin America (1914-2014)",

note = "5th International Congress on Arsenic in the Environment, As 2014 ; Conference date: 11-05-2014 Through 16-05-2014",

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Leiva, ED, Ramila, CDP, Vargas, IT, Escauriaza, CE, Bonilla, CA, Pizarro, GE, Pasten, PA & Regan, JM 2014, Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed. in One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment, CRC Press/Balkema, pp. 90-92, 5th International Congress on Arsenic in the Environment, As 2014, Buenos Aires, Argentina, 5/11/14. https://doi.org/10.1201/b16767-35

Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed. / Leiva, E. D.; Ramila, C. D.P.; Vargas, I. T. et al.
One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. CRC Press/Balkema, 2014. p. 90-92 (One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed

AU - Leiva, E. D.

AU - Ramila, C. D.P.

AU - Vargas, I. T.

AU - Escauriaza, C. E.

AU - Bonilla, C. A.

AU - Pizarro, G. E.

AU - Pasten, P. A.

AU - Regan, J. M.

PY - 2014/1/1

Y1 - 2014/1/1

N2 - We investigated the relevance of the interaction between Fe and As in iron-rich sediments for As attenuation in surface waters of the Chilean Altiplano, under climatic conditions of extreme altitude (>4,000 masl) and aridity (<310 mm year-1). Our results show that As concentrations in aqueous phase were attenuated (>70%) due to stabilization processes in Fe-rich sediments. Total As content in Fe sediment profiles exceeds 0.9 g kg-1 and in the surface is higher than 4 g kg-1. As and Fe show perfect correlation in the Fe sediment profiles indicating a close connection between Fe minerals and As mobilization. Altogether, these results indicate that As attenuation is controlled by stabilization processes onto Fe minerals on the surface and at depth, thus controlling the discharge of As-rich runoff to the surface waters.

AB - We investigated the relevance of the interaction between Fe and As in iron-rich sediments for As attenuation in surface waters of the Chilean Altiplano, under climatic conditions of extreme altitude (>4,000 masl) and aridity (<310 mm year-1). Our results show that As concentrations in aqueous phase were attenuated (>70%) due to stabilization processes in Fe-rich sediments. Total As content in Fe sediment profiles exceeds 0.9 g kg-1 and in the surface is higher than 4 g kg-1. As and Fe show perfect correlation in the Fe sediment profiles indicating a close connection between Fe minerals and As mobilization. Altogether, these results indicate that As attenuation is controlled by stabilization processes onto Fe minerals on the surface and at depth, thus controlling the discharge of As-rich runoff to the surface waters.

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DO - 10.1201/b16767-35

M3 - Conference contribution

AN - SCOPUS:84907359862

SN - 9781138001411

T3 - One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment

SP - 90

EP - 92

BT - One Century of the Discovery of Arsenicosis in Latin America (1914-2014)

PB - CRC Press/Balkema

T2 - 5th International Congress on Arsenic in the Environment, As 2014

Y2 - 11 May 2014 through 16 May 2014

ER -

Leiva ED, Ramila CDP, Vargas IT, Escauriaza CE, Bonilla CA, Pizarro GE et al. Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed. In One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment. CRC Press/Balkema. 2014. p. 90-92. (One Century of the Discovery of Arsenicosis in Latin America (1914-2014): As 2014 - Proceedings of the 5th International Congress on Arsenic in the Environment). doi: 10.1201/b16767-35

Arsenic attenuation in aqueous phase is linked with stabilization onto Fe minerals in a high Andean watershed

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